[Rd] Recommend/clarify in ?utils::news that h2/h3 markdown hierarchy is preferable to h1/h2

The current wording in ?utils::news reads to me as implying we should use `#` and `##` for the respective version, category headings [1]: > File NEWS.md should contain the news in Markdown..., with the > primary heading level giving the version number... Where available, > secondary headings are t

Re: [Rd] sqrt(.Machine$double.xmax)^2 == Inf, but only on Windows in R

Hello! My three Groschen: On MacOS (Intel CPU) and R 4.4.3 I report: > dput(.Machine$double.xmax, control = 'hex') 0x1.fp+1023 > dput(sqrt(.Machine$double.xmax), control = 'hex') 0x1.fp+511 > dput(sqrt(.Machine$double.xmax)^2, control = 'hex') 0x1.ep+1023 so as